may cripple
Regular verb: cripple - crippled- crippled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may cripple
you may cripple
he may cripple
we may cripple
you may cripple
they may cripple 	I may be crippling
you may be crippling
he may be crippling
we may be crippling
you may be crippling
they may be crippling	I may have crippled
you may have crippled
he may have crippled
we may have crippled
you may have crippled
they may have crippled	I may have been crippling
you may have been crippling
he may have been crippling
we may have been crippling
you may have been crippling
they may have been crippling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't cripple
you mayn't cripple
he mayn't cripple
we mayn't cripple
you mayn't cripple
they mayn't cripple 	I mayn't be crippling
you mayn't be crippling
he mayn't be crippling
we mayn't be crippling
you mayn't be crippling
they mayn't be crippling	I mayn't have crippled
you mayn't have crippled
he mayn't have crippled
we mayn't have crippled
you mayn't have crippled
they mayn't have crippled	I mayn't have been crippling
you mayn't have been crippling
he mayn't have been crippling
we mayn't have been crippling
you mayn't have been crippling
they mayn't have been crippling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I cripple?
may you cripple?
may he cripple?
may we cripple?
may you cripple?
may they cripple? 	may I be crippling?
may you be crippling?
may he be crippling?
may we be crippling?
may you be crippling?
may they be crippling? 	may I have crippled?
may you have crippled?
may he have crippled?
may we have crippled?
may you have crippled?
may they have crippled? 	may I have been crippling?
may you have been crippling?
may he have been crippling?
may we have been crippling?
may you have been crippling?
may they have been crippling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I cripple?
mayn't you cripple?
mayn't he cripple?
mayn't we cripple?
mayn't you cripple?
mayn't they cripple? 	mayn't I be crippling?
mayn't you be crippling?
mayn't he be crippling?
mayn't we be crippling?
mayn't you be crippling?
mayn't they be crippling? 	mayn't I have crippled?
mayn't you have crippled?
mayn't he have crippled?
mayn't we have crippled?
mayn't you have crippled?
mayn't they have crippled? 	mayn't I have been crippling?
mayn't you have been crippling?
mayn't he have been crippling?
mayn't we have been crippling?
mayn't you have been crippling?
mayn't they have been crippling?